Mayo Test Catalog, (Sorted By Test Name) - Mayo Medical ...

HSVG
84429
A negative result does not necessarily rule out a primary or reactivated infection since specimens may
have been collected too early in the course of disease, when antibodies have not yet reached detectable
levels, or too late, after IgM levels have declined below detectable levels.
Reference Values:
Negative (reported as reactive or negative)
Clinical References: 1. Ashley RL, Wald A: Genital herpes: review of the epidemic and potential
use of type-specific serology. Clin Microbiol Rev 1999;12:1-8 2. Brown ZA, Selke S, Zeh J, et al: The
acquisition of herpes simplex virus during pregnancy. N Engl J Med 1997;337:509-515 3. Lafferty WE,
Coombs RW, Benedetti J, et al: Recurrences after oral and genital herpes simplex infection. N Engl J Med
1987;316:1444-1449 4. Whitley RJ: Herpes simplex viruses. In Fields Virology. Vol.2. 2nd Edition.
Edited by BN Fields, DM Knipe. New York, Raven Press, 1990, pp 1843-1887
Herpes Simplex Virus (HSV) Type 1- and Type 2-Specific
Antibodies, IgG, Serum
Clinical Information: Herpes simplex virus (HSV) types 1 and 2 are members of the Herpesviridae
family, and produce infections that may range from mild stomatitis to disseminated and fatal disease.
Clinical conditions associated with HSV infection include gingivostomatitis, keratitis, encephalitis,
vesicular skin eruptions, aseptic meningitis, neonatal herpes, genital tract infections, and disseminated
primary infection. Infections with HSV types 1 and 2 can differ significantly in their clinical
manifestations and severity. HSV type 2 primarily causes urogenital infections and is found almost
exclusively in adults. HSV type 1 is closely associated with orolabial infection, although genital infection
with this virus can be common in certain populations. The diagnosis HSV infections is routinely made
based on clinical findings and supported by laboratory testing using PCR or viral culture. However, in
instances of subclinical or unrecognized HSV infection, serologic testing for IgG-class antibodies to
type-specific HSV glycoprotein G (gG) may be useful. There are several circumstances in which it may
be important to distinguish between infection caused by HSV types 1 and 2.(1) For example, the
likelihood of reactivation of the infection (type 2 -> type 1) and the method of antiviral therapy may be
different depending on the specific type of HSV causing disease. In addition, the results of HSV
type-specific IgG testing is sometimes used during pregnancy to identify risks of congential HSV disease
and allow for focused counseling prior to delivery.(2-3)
Useful For: Determining whether a patient has been previously exposed to herpes simplex virus (HSV)
types 1 and 2 Distinguishing between infection caused by HSV types 1 and 2, especially in patients with
subclinical or unrecognized HSV infection
Interpretation: This assay detects IgG-class antibodies to type-specific herpes simplex virus (HSV)
glycoprotein G (gG), and may allow for the differentiation of infection caused by HSV types 1 and 2. The
presence of IgG-class antibodies to HSV types 1 or 2 indicates previous exposure, and does not
necessarily indicate that HSV is the causative agent of an acute illness.
Reference Values:
Negative (reported as positive, negative, or equivocal)
Clinical References: 1. Ashley RL, Wald A: Genital herpes: review of the epidemic and potential
use of type-specific serology. Clin Microbiol Rev 1999;12:1-8 2. Ashley RL, Wu L, Pickering JW, et al:
Premarket evaluation of a commercial glycoprotein G-based enzyme immunoassay for herpes simplex
virus type-specific antibodies. J Clin Microbiol 1998;36:294-295 3. Brown ZA, Selke S, Zeh J, et al: The
acquisition of herpes simplex virus during pregnancy. N Engl J Med 1997;337:509-515 4. Lafferty WE,
Coombs RW, Benedetti J, et al: Recurrences after oral and genital herpes simplex infection. N Engl J Med
1987;316:1444-1449 5. Binnicker MJ, Jespersen DJ, Harring JA: Evaluation of three multiplex flow
immunoassays to enzyme immunoassay for the detection and differentiation of IgG-class antibodies to
herpes simplex virus types 1 and 2. Clin Vac Immunol 2010 Feb;17(2):253-257
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